Multiport rotary valve



Nov. 6, 1945. A. KROMH'OUT 2,888,268

MULTIPORT ROTARX.r` VALVE i Nov. 6, 1945. A KRQMHOUT 2,388,268

MULTIPORT ROTARY VALVE Filed Nov. 6, 1942 6 Sheets-Sheet 3 6 sheets-sheet 5 Filed Nov. 6, 1942 Nov. 6, 1945. yAc KRoMHouT MULTIPORT ROTARY VALVE 6 Sheds-Sheet 6 Filed Nov. 6, 1942 Patented Nov. 6,1945

Andrew Kromhout,

Elgin, lll., assignor to Elgin. SofteneiisCorporatlon, Elgin, lll., a corporation mi l o y y Appueauon'ngvember s, 1942, semi nu. 464,144

i 'z claims. (ol. 217-191" This invention relates t a 'new and multi-port rotary valveand has for its principal object the provision of a valve of the kind mentioned retaining all of the advantages of a rotary plate type multi-port valve without the serious improved u 'the springs used in connection therewith,.any grit or foreign matter that might get between the coacting surfaces will have an opportunity to become dislod'd by being wiped olf at the valve port openings..

objection of scoring, and, compared with the lift plate type, without the serious objection of water hammer in the operation of the valve from one position to another.

Among the more important `features of the valve of my invention may be mentioned the following:

l(l) It has no metal to metal surface engagement; hence, leakage due to scoring or une'ven expansion or contraction of `metal surfaces in contact with one another is avoided.

(2,) 'I'he incoming water can be completely shut (5) The hollow cylindrical shei'i containing the valve ports may be made of metal, metal lined with .glass or other suitable, smooth, wear-resisting material, solid glass, or other suitable material. The valve rotor cooperating with the ported oil' from the valve body. or other equipment atl tac'hed thereto, without requiring additional manually, or otherwise, operated valves on the 7 iniiow side of the valve.

(3) The valve is so designed that it provides within itselfan eiiective means of regulating the flow of hard water entering the inlet port. and, hence, special mechanical regulating devices, are

- v not required. Furthermore the valve also provides within itself means for regulating the ilow of water through the-ejector, which is an important advantage where the valve is used in connection with a zeolite water softener requiring brine solution of a certain strength for proper regeneration, and the valve also provides Within itself means for regulating the proper flow of rinsing water and water for backwashing in connection with brine regeneration of a softener. Furthermore this valve is so designed that water can be cut oif completely when the valve is turned to a certain position, thus permitting repairs or cylindrical surface of the shell has shoes .of rubberI or other non-metallic material, as stated before,

capable of making good water-tight seals on the surface of the shell.

(6) V'I'he valve is so designed that hard Water v may be mixed Vwith the zero soft water to deliver waterto the service system having a desired degree of hardness, and it is further designed to pere mit bypassing hard water directly to the service system, if that is desired during the regeneration ofthe softener. 'I'hese and other features of the invention will all appear in the course of the followingdescription, -in which reference is made to the accompanying drawings, wherein- Figure 1 is a face view of the valve of my invention; v

Fig. 2 is a cross-section on the line 2 2 of Fig. 1;

Fig. 3'is a rear view of a valve similar to that 4 shown in Figs. 1 and 2 but including a by-pass;

alterations to be made in the system or unit f position of the by-pass cam when the valve is in connected with the valve.

(4) The valve shoes on the rotor, which are preferably made of rubber but may be made of leather or other suitable substitute, are slidable `on the cylindrical wall of the stator shell containing the valve ports, and are held seated under spring pressure so that there is automatic take` up for what little Wear occurs on the relatively slidable parts. The valve is furthermore so designed that the valve shoes are held seated under water pressure and, therefore, do not rely entirely upon spring pressure thereon to prevent leakage. This 'arrangement is of advantage because the valve shoes in sliding over the seat surface wipe it clean and, because of the resilience of the materesponding parts throughout the views.

rial of the shoes themselves and the resilience of Fig. 4 is a sectional detail on the line .4 4 of Fig. 3;

Fig. 5 is a section on the line 5-5 of Fig. 4;

Figs. 6 and 7 are sections of the valve of Fig. 3 taken in the planes of the lines 6-6 and l--l in Fig. 2, these portions of the twovalves of Figs. 1 and 3 being alike; y

Fig. 8 is a view similar to Fig. 5, showing the Figs. 12,V 13, and 14 correspond to Figs; 6, 7, and v 8, but show the valvein the brine position, and Figs. v15, 16, and 17 are other views similar to Figs. 6, 7, and.8, but showing the valve in the Y rinse position.

Similar reference vnumerals are applied to cor- Referring rst to Figs. 1 and 2, the valve of my invention has the body I8 thereof made in three parts, namely, a hollow generally cylindrical` shell I 9,` a face plate 26, and back plate 2|. The

' ingv contact with the plates 20 and 2 I.

plates 20 threading on studs 23 Compressible gasket rings 24 of rubber or other' suitable, compressible, resilient material are entered in annular grooves in the opposite ends of the shell and project therefrom enough for seal- A partition wall 25 in the middle of the shell divides it transversely into two chambers, the front chamber 26 being for softened water and the rear chamber 21 being for raw water. A shaft 28 is rotatable in the stuilng boxes 29 and 3.8 in the face plate 2li and partition wall 25, respectively, and has a hand wheel 3| secured on the outer end thereof together with a pointer 32 to indicate the diderent positions of rotary adjustment of the valve, there being index marks 33 on the face plate 28 in the case of a valve used in connection with a zeolite water softener, marking the different valve positions, soft for the softening or service position, wash for the backwash position, brine" for the brining position, and rinse for the rinsing position. The valve may be turnedA in a counter-clockwise direction from the soft or service position through the three other positions and back to the soft or service position in a cycle of operation of the water softener in connection with which the valve is used. The shaft 28 has two spiders 34 and 35 secured thereon, rotatable in the chambers 26 and 21, to move valve shoes relative to ports provided in circumferentially spaced relation in the cylindrical side walls of the shell I9, whereby to establish different flows through the valve and softener connected therewith.

The valve of Figs. 1 and 2 is the same as the valve shownin Figs. 3, 6, and '7 in so far as the shell I9 and face plate 20 are concerned, as well as the shaft 28 and spider and other valve parts associated therewith. The valve of Fig. 3, howport 41. A pipe 54 connected to the top of the softener tank is connected to the neck 55 communicating jointly with ports 46 and 5l. Another pipe 56 extending from the bottom of the softener tank is connected with a neck 51 and communicates jointly with the ports 48 and 52.

Ay hollow boss 58 is formed on the side of the shell I9 and has two passages therein 59 and 60 leading to small ports 6l and 62 in the cylindrical wall of the shell. These ports communicate with the chamber 21 and are spaced circumferentially with respect to one another and with respect to the ports 5I and 52, as illustrated in Fig. '1. The boss has a longitudinal bore 63 communicating at the rear end with the passage 60 and at the front end with a nozzle 64. Another nozzle 65 disposed intermediate the ends of the bore 53 discharges into the nozzle 64 through a chamber 66 in the front end of the bore behind the nozzle 64. A neck 61 on the side of the boss 58 communicates with the chamber 66, and a brine supply inlet pipe (not shown) leading from a brine tank is connected with the neck 61 for delivers7 of brine to the valve, the brine being drawn through the pipe by siphon action when water under pressure is delivered through the nozzle 85 and discharged through the nozzle 64 and through passage 68 into the neck 55and out through the pipe 54 leading to the top of the softener tank. The passage 68 communicates at its rear end with the passage 5s previously mentioned. A plug 69 closes the rear end of the passage 63 and can be removed for adjustment or replacement of theejector nozzle 65.

The shell i9 is preferably lined with glass, as indicated at 10 and 1I, although any other suitable non-metallic or composition material may be employed. Th'eglass sleeve liners 10 and 1I may be molded to the form desired to provide ports in register with those in the shell and are ceever, has a different back plate 2Ia, thus, whereas the valve of Figs. 1 and 2 has the raw water inlet pipe 36 connected to the center of the back plate 2l, the valve of Fig. 3 has the raw water y inlet pipe 36 connected to its back plate 2Ia off center, the off center location being necessitated by the provision of a by-pass valve housing provided in theform of a boss 31 on the back plate 24a in spaced relation to the raw water inlet pipe.

A by-pass connection is indicated at 38 between the boss 31 and the soft water outlet pipe 39 connected to the service system. A poppet valve 60 has its stem working in a combination valve seat and guide 4i in the back plate 21a, and a spring 42 seated against the inside of the cover plate 43 bears against the head of the valve 4U to urge this by-pass valve normally toward the seat 4l. The spider 35a is the same as the spider 35, but includes an arcuate cam 44, which in certain positions of rotation of the shaft 28 unseats the by-pass valve -40 by sliding engagement with the end of the stem thereof. The port arrangement is' otherwise the same in the two valves, so that Figs. 6 and 7 and related Figures 9 and l0, and so forth, may be considerai as relating as much to the valve of Figs. 1 and 2 as to the valve of Figs. 3, 4 and 5.

The shell 'i9 has four ports d5, 46, 41., and d8, communicating with the chamber 26 and spaced 90 apart. The diametrically opposed ports 4G and 48' communicate through passages 49 and 50 with the diametrlcallyI opposed ports 5I and 52 45, and a drain pipe 53communicates with the mented in place with a plastic water-proof cement 12 filled in around the liners, between the liners and the side walls of the shell. The spiders 34 and 35 or 35a operate rubber faced valve sh'oes slidably engaging the smooth inner surfaces of the liners 10 and 1I toopen certain of the ports and close others. 'Ihere are two long shoes 13 and 14 and a short shoe 15 on the spider 34, each faced with a pad 16 preferably of rubber, although leather or any other suitable material may be provided. There are two long shoes 11 and 1B and a shorter shoe 13 provided on the spider 35 or 35a, as the -case may be, each equipped with a pad 16 preferably of the same material as that used on th'e shoes 13, 14, and 15. In each instancethe shoe has pins working in guides 8| on the spider and has one or more coiled compression springs 82 acting between the guide and shoe to urge the shoe radially outwardly into sealing engagement with the surface of the liner. lIhe water pressure active against the inner faces of the shoes also tends to keep the shoes in much tighter sealing engagement with the liners. I may, if desired, provide means whereby the spring pressure on the valve shoes can be relieved before th'e shoes are moved from one position to another. However, the spring tension used is ordinarily light enough compared with the hydraulic pressure active on the shoes so that relief of the spring pressure is not considered important enough to warrant the complication of construction which the addition of that feature would necessitate. The fact that there is no metal to metal surface engagef ment avoids liklihood of leakage due te scoring or uneven expansion and *contraction of the Present design being particularly well .suited t0 metal parts in contact with one another. Rubber facing on the valve shoes'oompensates for such liner irregularities as there may be in the sur-` face of th'e liner, so that an accurately machined or ground surface is not necessary. Furthermore, any wear` on the rubber facings is automatically compensated for by the springs 82. 'I'he fact that the liners are not an integral part of the shell is of advantage because it permits fairly easy replacement, if that is vever necessary. The shell itself is not an integral part of the valve body, and thev same advantage as to easy replacement if necessary is gained. In th'e operation ofthe valve, the sliding of the vrubber faced shoes over the inner surfaces of the liners 1li and 1l results in the wiping clean of the con-V` tacting surfaces, and inasmuch as the slices are in spaced relation, any particles of` grit or dirt wiped off the inner surfaces of the liners will be carried toward the ports and have an opportunity of being washed out. Any grit or foreign matter that happens to lodge temporarily between the rubber face portionsof the shoes and the inner surfaces of the liners will not be apt to scratch the surfaces, due to the resilience of the rubber, but will temporarily imbed itself in the rubber and be released wh'en reaching a valve port in the operation of the valve. There is also another important advantage gained by the sliding action of the valve shoes, and that is the fact that the valve ports yare opened or closed gradually and evenly and, therefore, th'ere is no likelihood of water hammer or shock.' that having been an outstanding'objection tothe lift plate type of valve. A still further important advantage of the present construction and mode of operation liesl in the fact that the valve shoes themselves provide an effective means of regulating the flow so that no other regulating devices are required. This is important not only in the regulation of the flow of hard water during softening operation, but also in the regulation of th'e flow of water through the ejector during regeneration, and in the regulation of the flow of water in rinsing and backwashing.

In operation, when the valve is in the service position illustrated in Figs. 6, "l, and 8, the raw water enters the chamber 21 in the valve through' the pipe 36 and flows out through the port 5I and pipe 5t (Fig. 2) into the/top of the softener S for passage downwardly through' the bed of water softening material. The softened water leaving the bottom of the softener tank S returns to the valve through the pipe 56 (Fig, 2) and entersthe chamber 2E through' port 48, and flows out through the port 45 and pipe 39 (Fig. 1) to the service system. During this operation, the shoes 11 and 18, a sshown in Fig. 7, keep all of the ports opening from chamber 21 closed except the port 5l, and the shoes 14 and 15, as shown in Fig. 6, keep all of the ports opening from the chamber 26 closed except the ports 45 and 48. `It is obvious th'at the water pressure in the chambers 26 and 21 will help to keep the shoes seated tightly over the ports that are closed thereby, although, ofcourse, the spring pressure active on th'e shoes would be suilicient in itself. The fact that the chamber through the` port al, being conducted water pressure is active to aid in holding the shoes seated makes it unnecessary to provide as heavy spring pressure as might otherwise be ret quired, and with' lighter spring pressure active 4 automatic operation due to the fact th'at there is only simple rotation of the shaft 28 in one direction, as distinguished from rotation first in one direction and then in the opposite direction, or as distinguished from endwise and rotary movement, common in the lift turn type of valve. During the softening operation, the cam 44 for operating th'e by-pass valve 40, shown in Fig, 4, is inthe position shown in Fig. 8, remote `in relation to the stem of the valve 40 projecting through the guide 4l. The softening operation is, of course continued until the water softening material is exhausted and requires regeneration. The first stepin th'e regeneration of a zeolite water softener is known as the backwash, in which the flow through the softener tank is reversed, so that in a downilow softener the foreign matter filtered from th'e water during the softening operation and left resting on the top 0f the bed in the form of a silt can be washed out and the bed of water softening material, packed during the downow softening run, can be broken up and prepared for the -brining.

During backwashing, as illustrateddn Figs. 9, 10, and 11, the incoming raw water from the pipe. 36 entering chamber 21 leaves the valve through the pont E2 and is conducted through pipe 5B (Fig. 2) into the bottom 4of the softener tank S for passage upwardly through the ibed of water softening material to break up the bed. as stated before, and wash out the silt deposit on the top of thebed. The water leaving the top of the tank S is conducted back to the valve through pipe 5d (Fig. 2) and enters chamber 26 through 'port i6 and is discharged from the through the drain pipe 53 (Figs. 1 and 3) to the sewer or other waste receptacle. During the backwash, the cam M, as indicated in Fig. 11, holds the by-pass valve du open so that raw water canbe by-passed Ato the service pipe 39 through the by-pass connection 3B (Fig. 3)', should there be a demand for water during the time the backwash occurs. In this position ofthe valve, the.

shoe 11 closes the ports 5I, 6l, and 62, and the shoe 16 closes the port 45, and the shoe 15 closes the port d. After a predetermined amount of water has been passed through the bed at a fairly rapid rate, the bed is ready for brining.

In brining, the valve is in the position shown in Figs. 12, 13, and 14. The incoming raw water from the pipe 36 enters the chamber 21 and flows 'from the lbrine tank B, and the water discharged from the ejector nozzle 65 through the nozzle 64 at a fast rate draws the brine from the brine tank into the chamber 66V andcarries it with the water out through the pipe 54 into the top of the softener S. The spent brine leaving the bottom of the softener .tank S is conducted through the pipe 56 back to the valve and enters the chamber 26 through the port 48, and is conducted to the drain through the port 41 and pipe 53. During this operation, the ports 5l and 6I are closed.

by the shoe 11 and the port 52 is closed by the shoe 18, as shown in Fig. 13. The port. is closed by the shoe 14 yand the port 46 is closed by the shoe 13. The by-pass valve 40 during this operation isheld open by the cam 4I, as indicated in Fig. 14. After a predetermined amount of brine has been used, suqicient vfor the regeneration of the bed of water softening material. the bed must be rinsed to remove all traces of brine and liberated calcium and magnesium from the bed.

. 'During rinsing, the valve is in the position shown in Figs. 15, 16, and 17. The incomingraw water from the pipe 3B enters the chamber' 2l and is conducted through the port 6I and passage 59 out through the pipe 56 into the top of the softener tank S for passage downwardly through the bed of water softening material, lso as to clear the head space in the tank of brine and rinse the bed thoroughly, .as well as the space therebeneath in the tank. The rinse water leaving the bottom of the tank S is conducted back i to the valve through the pipe 56 and enters the chamber 28 through the port d8, and is conducted to the drain through the port dl and pipe 53. In this operation, the by-pass valve is again held open by the cam M, as shown in Fig. 17, so that hard water may be by-'passed to the service system. During this operation, the port i is held closed by the shoe 1l, the port 62 is held closed by the shoe ls, and the port 52 is held closed by the shoe 1B, as illustrated in Fig. 16. Also during this operation,'the por-t d5 is held closed by the shoe 'M and the port d8 is held closed by the shoe 13, as illustrated in Fig. 15. The rinse flowis continued until a predetermined amount of water has passed through, or until the water discharged to the drain tests soft. The valve is then moved to the softening or service position, and the cycle` the water main pressure is such that with a full port opening, the how of water in backwash position, for example, (see Figs. 9 and l0) causes a loss of mineral through the drainv port tl, the was index mark 33 could be reset in a counter-clockwise direction the desired number of degrees to uncover less of the port 52 and accordingly reduce the ow of water through the valve. The same method can bevused to regulate the flow through the port 62 during brining (see Fig.

y:means outwardly individually relative to the It is believed the foregoing description conveys a good understanding of the objects and advantages of my invention. The appended claims have been Vdrawn to cover all legitimate modications and adaptations.

I claim:

1. In a multiple port valve, a hollow generally cylindrical body member having ports provided in the cylindrical wall thereof in two spaced substantially parallel planes extending transspiders into tight sealing engagement with said ported cylindrical wall covering andclosing selected ports, means for turning the spider members, the ,wall of said body member in each of said chambers including a ported cylindrical liner sleeve of non-metallic material inserted in r said body 'member having its ports registering Awith' the body ports, said sleeve having a smooth inner surface, arcuate facing pads of gasket material on said valve shoes for slidable sealing ccntact on the smooth inner surface of said `sleeve, and a removable closure plate forming an end wall on said body member for each of said chambers. i

2. In a. multiple-port valve, comprising a hollow generally cylindrical body member having ports provided in the cylindrical wall thereof, and a rotary spider Vmember in-said body member having one or more generally T-shaped arms adapted to support on the cross-portions thereof valve shoes relative tothe ports in said cylindrical wall, one or more elongated arcuate valve shoes, elongated in a direction circumferentially with respect to said cylindrical wall, for slidable sealing engagement with said wall, and means for mounting the opposite end portions of said shoes 13) and through port 6| in rinsing (see Fig. 16),

and through port 5| during softening operation (see Fig. 6). It is also apparent from a study ofthe drawings that either of the spiders 3d and 36 may be adjusted rotatably with respect to the shaft 28 independently of the other spider to ob tain whatever operating characteristics may be desired and any predetermined desired regulation of ilow, within the limits of the structure. This, of course, is a distinct advantage over other multi-port or so-called solo valves. A further advantage of the present construction lies in the Athe mineral or gravel bed may be relaid, for example-or repairs can be made to valves in the service system, or pipes may be replaced or altered in the service system.

on the opposite end portions of said cross-portions with freedom fo'r substantially radial movement relative to said wall, said means including spring means activev between the ends of the cross-portions and the ends of the shoes to urge the shoes outwardly individually relative to the spider into tight sealing engagement with said cylindrical wall.

3. In a multiple-port valve, comprising a hollow generally cylindrical body member having ports provided inthe cylindrical Wall thereof, and a rotary spider member in said body member having one or more generally T-shaped arms adapted to support on the radially outer crossportions thereof valv'e shoes relative to the ports in said cylindrical wall, one or more elongated arcuate valve shoes, elongated in a direction circumferentially with respect to said cylindrical Wall, for slidable sealing engagement with said wall, gasket facing material on each of said shoes for contact 'with the ported cylindrical wall, and means for mounting the opposite end portions of said shoes on the opposite end portions of saidcross-portions with freedom for substantially ra- Vdial movement relative to said wall, saicl means including spring means active between lthe ends of the cross-portions and the ends oi the shoes to urge the shoes outwardly individually relative to the spider into tight sealing engagement with said cylindrical wall, said adjustable mounting and spring pressure on said shoes compensating 'for uneven wear of said gasketmaterial.

4. In a multiple port valve, a hollow generally cylindrical body member having two sets of ports 5 provided in the cylindrical wall thereof in two planes, said body member having means providing one or more passages interconnecting certain of said ports independently of the valve means Within said body member, ported cylindrical liner l0 sleeve means of non-metallic material in said body member having the ports thereof registering with the body ports, said liner sleeve means having a smooth inner surface adaptedfor the sliding engagement thereon of valve shoes, a rov tary shaft in said body member carrying two spiders on lwhich are mounted circumferentially spaced, separate, arcuate-faced valve shoes for slidable sealing engagement with the ported cylindrical wall of the body member, spring means for urging said valve shoes outwardly` individually relative to the spider into tight sealing engagement with said cylindrical wall covering-and closing selected ports, said spiders being rotatably adjustable on the shaft independently of 25 one another, means for securing 'the spiders to the shaft in adjusted positions, and means for turning the shaft.

5. In a multiple port valve, a hollow generally cylindrical body member having two sets of ports provided in the cylindrical wall thereof in two' planes, there being a plurality of circumferentially spaced ports in each set, said body member having means providing one or more passages interconnecting 4certain of said ports independ- 35 ently of the valve means within said body member, a rotary shaft in said body member carrying two spiders on which are'mountedcircumferentially spaced, separate, arcuate-faced valve body member, a'` ported cylindrical liner sleeve of non-metallic material in each of said chambers having the ports thereof registering with the body ports, said sleeves having smooth inner surfaces adapted for sliding contact therewith of valve shoe means, a rotary shaft, spider mem# bers on said shaft in said chambers carrying circumferentially spaced, separate, arcuate-faced valve shoe means for slidable sealing engagement with the cylindrical wall of the chambers, spring means for urging said valve shoe means out-` wardly individually relative to the spiders into tight sealing engagement with said ported cylindrical-,wall covering and closing selected,ports, said spiders being rotatably adjustable on the shaft independently of one another, means for y securing the spiders to the shaft v,in adjusted positions, and means for turning the shaft, said.

stantially parallel planes extending transversely with respect to said body member, a partition wall in said bodymmember between the two sets of ports defining two chambers, one of which communicates with the one set of .ports and the other with the other'set of ports, there being a plurality of circumferentially spaced ports in each set, said body member having means providing passages intereonnecting a certain port or ports of one chamber with a certain port or ports of the other chamber independently of the shoes of gasket material for slidable sealing en- 4o valve means within said body member, a rotary gagement with the ported cylindrical wall of the body member, 'spring means for urging said l valve shoes outwardly individually relative to the spider into tight sealing engagement with said cylindrical wall covering and closing selected V ports, certain ports in at least one of said sets being closely spaced and of a size in relation ,to t,

the arcuate length of the cooperating valve shoe to permit closure of more than one port with said shoe in a predetermined position of rotation of 50 '6. In a multiple port valve, a hollow generally 55 vcylindrical body member` having ports provided in the cylindrical wallfthereof in two spaced substantiallyparallel planes extending transversely with respect to said body member, a partition wall in said body member between the two sets oi' ports defining two chambers, one of which communicates with the one set of ports and the other with the other set of ports, said body member having means providing Passages interconber independently of the valve means within said shaft, spider members on said shaft in said chambers carrying circumferentially spaced, separate, arcuate-faced valve shoe means 'of gasket material for slidable sealing engagement with the cylindrical wall of the chambers, spring means forurging said valve shoe means outwardly individually Arelative to the spiders into tight sealing engagement with said ported cylindrical wall covering and closing selected ports, certain ports in at least oneof said sets being closely spaced and of a size in relation to the arcuate length ofthe cooperating valve shoe to` permit closure of more than one port 'with said shoe in a predetermined position'of rotation of the shaft, said spiders being rotatably, adjustable on the shaft independentlyof one another, means for secur ing the spiders to the shaft in adjusted positions,

and means forturningthe shaft, said valve shoes being elongated 'inifa .direction circumferentially ,with to said body member, and being so arranged with respect to one another and withfreference to theports' to permit complete stoilxntseofv iiow through the .valve ina predetermined, position. of rotary adjustment of the necting a certain port or ports of one chamber B5 spider members, with a certain port or ports of the other chamxaoimou'r. 

